get started on
get started on (something)
1. To begin doing some task It's already 6:00, so I better get started on dinner. Have you even gotten started on your homework?
2. To cause someone to start enthusiastically discussing some topic. In this usage, a noun or pronoun is used between "get" and "started." Don't get Grandpa started on the weather unless you want to hear about the Farmers' Almanac all night. All right, who got Uncle Fred started on tax reform?
get started on something
to begin doing something; to take the first steps to do something. When do we get started on this project? I want to get started on this right away.